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Circuit Modeling and Performance Analysis of GNR@SWCNT Bundle Interconnects

Chinese Journal of Electronics 2023年第6期32卷 1271-1277页

作者： ZHAO Wensheng YUAN Mengjiao WANG Xiang WANG Dawei Zhejiang Provincial Key Lab of Large-Scale IC Design School of Electronics and InformationHangzhou Dianzi University

In this paper, the single-walled carbon nanotube(SWCNT) with graphene nanoribbon(GNR)inside, namely GNR@SWCNT, is proposed as alternative conductor material for the interconnect applications. The equivalent circuit model is established, and the circuit parameters extracted analytically. By virtue of the equivalent circuit model, the signal transmission performance of GNR@SWCNT bundle interconnect is evaluated and compared with its Cu and SWCNT counterparts. The optimal repeater insertions in global-and intermediate-level GNR@SWCNT bundle interconnect are studied. Moreover, it is demonstrated that the GNR@SWCNT interconnects could provide superior performance, indicating that GNR@SWCNT structure would be beneficial for development of future carbon-based integrated circuits and systems.

关键词： Resistance Analytical models Inductance Graphene integrated circuit interconnections Repeaters System-on-chip

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Compact Model Library in Simscape for Various Memristors

Compact Model Library in Simscape for Various Memristors

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2023 International Applied Computational Electromagnetics Society Symposium, ACES-China 2023

作者： Liu, Yifan Wang, Dawei Dong, Zhekang Zhao, Wensheng School of Electronics and Information Hangzhou Dianzi University Zhejiang Provincial Key Lab of Large-Scale Integrated Circuits Design Hangzhou China

ISBN: (纸本)9781733509657

In this work, a memristor compact model library based on Simscape language is proposed to bridge the gap between modeling and application of memristors. The library consists of six window function-based dopant drift models, the voltage-controlled VTEAM model, one HfOx-based memristor model, and the model of commercial KNOWM memristor. Then, a general method to model memristor using Simscape language is illustrated. Finally, some exemplary usage of the library is demonstrated by simulating the I-V characteristics and temperature variation of 1-transistor-1-memristor (1T1R) structure, and power consumption of the long-term potentiation and long-term depression (LTP/LTD) process of an artificial synapse. The library file is available for downloading and can be utilized in Simulink directly, which exhibits compatibility with the original components of Simulink and Simscape. This open-source project will be continuously updated to include the most representative models based on various memristors and theories. © 2023 Applied Computational Electromagnetics Society (ACES).

关键词： Memristors

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An Enhanced Finite Element Thermal Solver with large-scale Parallel Computing Capability

An Enhanced Finite Element Thermal Solver with Large-scale P...

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2023 International Applied Computational Electromagnetics Society Symposium, ACES-China 2023

作者： Li, Xiaotian Liu, Yifan Wang, Gaofeng Zhejiang Provincial Key Lab of Large-Scale Integrated Circuits Design School of Electronics and Information Hangzhou Dianzi University Hangzhou China

ISBN: (纸本)9781733509657

MOOSE, an object-oriented parallel computing framework, has been universally utilized in developing numerical solver. In this work, a finite element method solver with large-scale parallel computing capability is developed based on the MOOSE framework for high-efficient and scalable thermal simulations. The performance of the developed numerical solver is evaluated through comparing the simulation results of a simplified AMD microprocessor with those obtained by the commercial software COMSOL. High consistence is achieved between the two groups of data, and the simulation time is greatly reduced through utilizing the inhouse simulator. © 2023 Applied Computational Electromagnetics Society (ACES).

关键词： Finite element method

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A Physics-Circuit Co-Electrothermal Simulation Approach for PHEMT

A Physics-Circuit Co-Electrothermal Simulation Approach for ...

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2023 International Applied Computational Electromagnetics Society Symposium, ACES-China 2023

作者： Jiang, Qi-Song Chen, Lin-Yuan Wang, Da-Wei Zhao, Wen-Sheng School of Electronics and Information Hangzhou Dianzi University Zhejiang Provincial Key Lab of Large-Scale Integrated Circuits Design Hangzhou China

ISBN: (纸本)9781733509657

The behavior of the pseudomorphic high electron mobility transistor (PHEMT) module highly depends on the inner electric and temperature fields. At the same time, there is strong nonlinear coupling between these two physical quantities. In this paper, a transient co-simulation method based on PSPICE and COMSOL is introduced to deal with the systematic electrothermal simulation. The electrical-thermal coupling mechanism of PHEMT is briefly introduced first, and then the circuit model and solid heat transfer model are established in PSPICE and COMSOL respectively. Finally, a data exchange module for two simulation platforms is specially developed to implement the coupled simulation. Some simulation results are presented at the end. © 2023 Applied Computational Electromagnetics Society (ACES).

关键词： SPICE

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Finite Element Approach Based Numerical Framework for Device Simulator

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IEEE Transactions on Computer-Aided design of integrated circuits and Systems 2025年

作者： Wang, Da-Wei Zhang, Qing Wan, Hang Zhao, Wen-Sheng Hangzhou Dianzi University Zhejiang Provincial Key Lab of Large-Scale Integrated Circuits Design School of Integrated Circuit Science and Engineering Hangzhou310018 China

In this work, a finite element method (FEM)-based numerical framework is proposed to effectively calculate the drift-diffusion equations and compiled into a parallel computing device simulator. In this framework, a novel upwind FEM is developed to solve the convection dominated continuity equations. In the implementation of the upwind method, the vector basis functions are employed to interpolate the edge streamline upwind current densities into mesh grid to obtain the spatial current density, and then the scalar FEM is used to construct the element matrix equation. Through comparing the calculating results of a 2-D PN-junction with those obtained by the COMSOL Semiconductor, the accuracy of proposed framework is verified first. Then, through several numerical cases, its advantages in comparison with FBSG-, SUPG-or CVFEM SUPG-based frameworks in terms of mesh grid adaptivity, computing stability, and efficiency are presented. At last, by combining the proposed framework with a domain decomposition scheme and a fully coupled Newtons approach, a parallel computing device simulator is developed, including both steady-state and transient solvers. The performance of the in-house simulator is evaluated in terms of calculating accuracy, large-scale problem solution capability, and scalabilities. © 2025 IEEE.

关键词： Mesh generation

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Analytical and experimental study of a valveless piezoelectric micropump with high flowrate and pressure load

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Microsystems & Nanoengineering 2023年第3期9卷 221-234页

作者： Jiafeng Ni Weipeng Xuan Yilin Li Jinkai Chen Wenjun Li Zhen Cao Shurong Dong Hao Jin Lingling Sun Jikui Luo Ministry of Education Key Lab.of RF Circuits and Systems College of Electron.&Info.Hangzhou Dianzi UniversityHangzhou 310018China Zhejiang Key Laboratory of Large-Scale Integrated Circuit Design Hangzhou Dianzi UniversityHangzhou 310018China Key Lab.of Adv.Micro/Nano Electron.Dev.&Smart Sys.of Zhejiang College of Info.Sci.&Electronic Eng.Zhejiang UniversityHangzhou 310027China International Joint Innovation Center Zhejiang UniversityHaining 314400China

Miniaturized gas pumps based on electromagnetic effect have been intensively studied and widely applied in ***,the electromagnetic effect-based gas pumps normally have large sizes,high levels of noises and high power consumption,thus they are not suitable for wearable/portable ***,we propose a high-flowrate and high-pressure load valveless piezoelectric micropump with dimensions of 16 mm*16 mm*5 *** working frequency,vibration mode and displacement of the piezoelectric actuator,the velocity of gas flow,and the volume flowrate of the micropump are analyzed using the finite element analysis *** maximum vibration amplitude of the piezoelectric actuator reaches~29.4μ*** output gas flowrate of the pump is approximately 135 mL/min,and the maximum output pressure exceeds 40 ***,a prototype of the piezoelectric micropump is *** show that performance of the micropump is highly consistent with the numerical analysis with a high flowrate and pressure load,demonstrated its great potential for wearable/portable applications,especially for blood pressure monitoring.

关键词： pump piezoelectric load

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A Compact and Narrow-Band Bandpass Filter Based on Spoof Surface Plasmon Polaritons 13

A Compact and Narrow-Band Bandpass Filter Based on Spoof Sur...

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13th Asia-Pacific International Symposium on Electromagnetic Compatibility and Technical Exhibition, APEMC 2022

作者： Zhang, Zeng-Cai Wang, Da-Wei Zhao, Wen-Sheng Hangzhou Dianzi University Zhejiang Provincial Key Lab of Large-Scale Integrated Circuit Design School of Electronics and Information Zhejiang Hangzhou310018 China

ISBN: (数字)9781665416719

ISBN: (纸本)9781665416719

This paper presents a compact and narrow-band bandpass filter (BPF). The spoof surface plasmon polaritons (SSPP) waveguide structure based on 3-D silicon process can be folded in space, and its electrical size can be decreased significantly. The asymptotic frequency of the proposed structure is 71.8% lower than that of the traditional rectangular groove structure with the same geometry. A compact narrow-band BPF can be obtained by combining the proposed SSPP structure with half-mode substrate integrated waveguide (HMSIW). The filter operates in the frequency range of 5.43-6.8GHz with a center frequency of 6.115 GHz, and its electrical size is 0.206λg × 0.037λg. © 2022 IEEE.

关键词： Bandpass filters

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Compact Model Library in Simscape for Various Memristors

Compact Model Library in Simscape for Various Memristors

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International Applied Computational Electromagnetics Society Symposium (ACES)

作者： Yifan Liu Dawei Wang Zhekang Dong Wensheng Zhao Zhejiang Provincial Key Lab of Large-Scale Integrated Circuits Design School of Electronics and Information Hangzhou Dianzi University Hangzhou China

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An Enhanced Finite Element Thermal Solver with large-scale Parallel Computing Capability

An Enhanced Finite Element Thermal Solver with Large-scale P...

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International Applied Computational Electromagnetics Society Symposium (ACES)

作者： Xiaotian Li Yifan Liu Gaofeng Wang Zhejiang Provincial Key Lab of Large-Scale Integrated Circuits Design School of Electronics and Information Hangzhou Dianzi University Hangzhou China

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A Physics-Circuit Co-Electrothermal Simulation Approach for PHEMT

A Physics-Circuit Co-Electrothermal Simulation Approach for ...

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International Applied Computational Electromagnetics Society Symposium (ACES)

作者： Qi-Song Jiang Lin-Yuan Chen Da-Wei Wang Wen-Sheng Zhao Zhejiang Provincial Key Lab of Large-Scale Integrated Circuits Design School of Electronics and Information Hangzhou Dianzi University Hangzhou China

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